Home / 23,031.39-31,781.01-12,959.58

Finding the Fourth Proportional to 23,031.39, 31,781.01 and 12,959.58

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Solution

The fourth proportional to 23,031.39, 31,781.01 and 12,959.58 is: 17,882.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,031.39 : 31,781.01 = 12,959.58 : x
  2. Step 2: Convert to fraction form
    23,031.39/31,781.01 = 12,959.58/x
  3. Step 3: Cross multiply
    23,031.39x = 31,781.01 × 12,959.58
  4. Step 4: Simplify right side
    23,031.39x = 411,868,541.58
  5. Step 5: Solve for x
    x = 411,868,541.58/23,031.39
  6. Step 6: Final answer
    x = 17,882.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.